Answer:
i) Rusting occurs the least in tubes 2 and 3 because either of air and water which are necessary for rusting is absent in the two tubes respectively.
ii) Rusting occurs most in tube 1 because both air and water which are necessary for rusting are present.
Explanation:
Rusting is a chemical change which involves a redox reaction. During the process of rusting, metallic iron is oxidized to hydrated iron (iii) oxide by oxygen present in air.
For rusting to take place effectively, each of these three factors mist be available: metallic iron, oxygen and water.
In the figure above, the iron nails in the three tester tubes will rust to different extents based on the availability of the three factors.
In test tube 1, the iron nails will rust the most because all the three factors: metallic iron, oxygen present in air, and water are abundantly present.
In test tube 2, the iron nails will rust the least or not at all because boiling of water removes dissolved oxygen from water and the oil layer above the boiled water prevents entry of oxygen from air. Thus, the nail do not rust because one of the three factors for rusting to take place, in this instance, oxygen is absent.
In test tube 3, the iron nails rusts the least or not at all as well because moisture or water is absent. Calcium chloride, a drying agent removes all the moisture from inside the tube. Hence, even though air is present, rusting do not occur as there is no moisture or water present.
Augustinian friar Gregor<span> Johann </span><span>Mendel.
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Brainliest Please
Answer:
1. Air mass is temperature or humidity
2. The two ways are temperature and humidity
3. Continental Polar and cP
4. Maritime Tropical and mT
5. Continental Tropical and cT
6. Arctic air masses are very cold and polar air masses are not as cold
7. Wind is movement in the air
8. It is called the Great Equalizer because of a storm that caused stockmen to lose herds
9. Pressure impacts the direction of the wind because the faster the wind blows the higher the pressure.
10. The general movement of the earth
The last two you are going to have to do on your own because I cant draw.
Answer:
Read the Explanation below.
Explanation:
1. I agree with the claim because you can see overall there is no difference in plant growth or variation if a plant has 30 ml of water or none at all.
2. I would measure the change in growth over a greater period of time to get a more accurate data set.
The answer your looking for is c hope it helps
and #rateme
